How Influential are the Senators?

I(X;Y): mutual information between outcome and voteH(Y): entropy of the outcomeH(X,Y): entropy of both the outcome and the senator's vote

I(X;Y)/H(Y): the percentage of outcome entropy eliminated by the
senator's vote
Agreement: the percentage of issues when the vote and the outcome matched.NotVotingP: the probability that the senator did not cast a vote.